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1.2 cm – length of a bee; 1.2 cm – diameter of a die; 1.5 cm – length of a very large mosquito; 1.6 cm – length of a Jaragua Sphaero, a very small reptile; 1.7 cm – length of a Thorius arboreus, the smallest salamander [113] 2 cm – approximate width of an adult human finger; 2.54 cm – 1 inch; 3.08568 cm – 1 attoparsec
≡ 6.4516 × 10 −4 m 2: square kilometre: km 2: ≡ 1 km × 1 km = 10 6 m 2: square link (Gunter's)(International) sq lnk ≡ 1 lnk × 1 lnk ≡ 0.66 ft × 0.66 ft = 4.046 856 4224 × 10 −2 m 2: square link (Gunter's)(US Survey) sq lnk ≡ 1 lnk × 1 lnk ≡ 0.66 ft (US) × 0.66 ft (US) ≈ 4.046 872 × 10 −2 m 2: square link (Ramsden's ...
The replicas were subject to periodic validation by comparison to the ... (1 km) 2 = (1000 m) 2 ... value of acceleration due to gravity to be 980.665 cm/s 2, ...
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]
One pikol (or one pecul) was equal to 61.761 3025 kg by its legal definition. [2] Some other units and their legal equivalents are given below: 1 thail = 1 ⁄ 1600 pikol 1 catti = 1 ⁄ 100 pikol 1 kabi = 1 ⁄ 100 pikol 1 kulack = 0.0725 pikol 1 amat = 2 pikol 1 small bahar = 3 pikol 1 large bahar = 4.5 pikol 1 timbang = 5 pikol
One arcsecond is the approximate angle subtended by a U.S. dime coin (18 mm) at a distance of 4 kilometres (about 2.5 mi). [6] An arcsecond is also the angle subtended by an object of diameter 725.27 km at a distance of one astronomical unit, an object of diameter 45 866 916 km at one light-year,
One hour's travel, used up to the 19th century. In Germany 1 ⁄ 2 Meile or 3.71 km (2.31 mi). After 1722 in Saxony 1 ⁄ 2 post mile = 1000 Dresden rods = 4531 m. [4] In Switzerland 16,000 ft or 4.88 km.
The shaku had been standardized as 30.3 cm (11.93 in) since 1891. [5] This means that there are about 3.3 shaku (10 ⁄ 33) to one meter. [6] [7]This definition was established by Meiji government law; until then, even though the unit was given the same name, its length varied depending on the era.